shycut

Convert MP4 to MP3

Keep only the sound of a video: a talk, a voice note, a song you recorded. Drop the MP4 here and save an MP3 on your own device.

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Drop your video here

Choose your video

MP4, MOV, WebM or MKV. It opens right here, on your device.

  • Nothing uploaded
  • No sign-up
  • No watermark

Tested in the browser

BrowserResultWhat came out
Google Chrome 155ConvertedMP3
WebKit 27.2 (Safari’s engine)ConvertedMP3

On October 24, 2026, a 10-second 1280×720 MP4 (H.264 video, AAC sound) went through this page’s button in each browser, and what came out was read back with ffprobe.

The test file carried a location tag; no converted copy kept it.

When to turn MP4 into MP3

An MP3 is far smaller than the video it came from and plays where a video can’t: in a car stereo, on a podcast host, in a music player or as a voice message.

The picture is dropped and the main sound track is encoded as MP3 at the quality you pick. The sound keeps its own level: nothing is boosted or cleaned up, unless you open the video in the editor first and reduce wind or background noise there.

MP4 and MP3, in short

MP4
The format that plays almost everywhere: phones, browsers, TVs, editing apps and every social platform take it. Inside is usually H.264 video and AAC sound.
MP3
The sound format every device and app plays, from car stereos to podcast hosts. It is compressed, so files stay small and a little detail is traded away.

How to convert

  1. Open the MP4

    Press the button and drop the file, or pick it from your files. It opens in this browser tab: nothing is uploaded, so there is no upload limit to hit.

  2. MP3 is already chosen

    The save window opens set to it. Change the file name or the quality if you like.

  3. Save

    The new file is written on your device and downloaded. Several files? Drop them together and they are converted one after another.

What changes, what stays

Picture
Left out: only the sound is saved.
Sound
The first sound track, at its own level, in stereo at most.
Quality
Small 96 kbps · Balanced 160 kbps · High 256 kbps: a minute of MP3 at Balanced is about 1.2 MB.
Details about you
The file is written from scratch, so none of the original’s metadata comes along: no location, no camera or phone model.

Questions

What bitrate is the MP3?

It depends on the quality you pick; each one’s bitrate is listed under “What changes, what stays”.

Can I convert several videos to MP3 at once?

Yes. Drop them together and each is saved as its own MP3, one after another.

Is MP3 the best choice?

For playing anywhere, yes. To edit or transcribe, WAV keeps every detail; for Apple devices, M4A is smaller at the same quality.

Your video stays with you.

Open Shycut, drop the video in and export. Free, with no account, and your video never leaves your device.

Choose your video

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